Vulnerability Description
SGLang's multimodal generation module is vulnerable to unauthenticated remote code execution through the ZMQ broker, which deserializes untrusted data using pickle.loads() without authentication.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Lmsys | Sglang | >= 0.5.5, <= 0.5.9 |
Related Weaknesses (CWE)
References
- https://github.com/sgl-project/sglang/blob/main/python/sglang/multimodal_gen/runProduct
- https://github.com/sgl-project/sglang/pull/20904
- https://github.com/sgl-project/sglang/releases/tag/v0.5.10
- https://github.com/sgl-project/sglang/security/advisories/GHSA-3cp7-c6q2-94xrBroken Link
- https://orca.security/resources/blog/sglang-llm-framework-rce-vulnerabilities/ExploitMitigationThird Party Advisory
FAQ
What is CVE-2026-3059?
CVE-2026-3059 is a vulnerability with a CVSS score of 9.8 (CRITICAL). SGLang's multimodal generation module is vulnerable to unauthenticated remote code execution through the ZMQ broker, which deserializes untrusted data using pickle.loads() without authentication.
How severe is CVE-2026-3059?
CVE-2026-3059 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-3059?
Check the references section above for vendor advisories and patch information. Affected products include: Lmsys Sglang.